Help me Identify this Luger

[John-HGT]

I'm helping a couple to dispose of their gun collection. I appreciate any information and Thanks!

The Luger they have is being difficult to identify with my limited knowledge. I have searched and read many sites, looked at pictures and tried to match up the info I have, but am coming up short.

I have pictures of every number and symbol I can find including the inside of the grip. The magazine has a matching SN, but the Holster might not be a match.

This link is to a zip file with all of the pictures I have.

https://1drv.ms/u/s!Aqjy5qeY5uAhhK0r...H1mzg?e=8mksDX

Here are some pertinent pics, not sure how many I can include.